[MacFilter] Anyone know of a piece of OS X software that will allow me to independently set the audio balance (L-R) of different applications?
Basically, I have a task wherein I listen to audio files of intermittent speech (single-word responses every few seconds) and annotate what the person is saying, and also precisely mark onset of each word. That's fine, but it's cripplingly boring, so I listen to podcasts at the same time. I can't do anything else purely visual, like read books/articles, so if I want a simultaneous activity, it has to at least have some audio component.
The problem is that my podcast or TV show obscures the speech that I'm annotating, a problem that can't be fixed by varying the volume levels. I'd like to try assigning my annotation audio to my left earphone, and iTunes to the right. I can't figure out a way to make OS X do this.
(We use a custom piece of software for annotation, so it would be reasonable to ask our Java dev to build it in. Even then, though, it doesn't look like there's a way
to set balance just in iTunes.)
I've seen third-party volume controls for separate applications in the past, though I can't think of the name of one at the moment. Are there any that allow you to change L-R balance as well?
Prefer freeware (who doesn't), but nominal price is fine too.